I am working on an app that has a auto-renewable subscription that gives users 200 tokens to use in the app each month. I have written a firebase cloud function to verify the receipt with apple and give the user the first 200 tokens on initial purchase, but I don't know how to continue to give the users a fixed amount of 200 tokens each month if their subscription is still valid. Could I store the receipt from the initial purchase of the subscription on my servers and use a monthly recurring firebase cloud function that checks the user's receipt from their initial purchase of the subscription to see if it's valid? Do old receipts tell you if a subscription is still valid like that? I also looked into Server to Server notifications but I am not very sure if the automatic renewal of a subscription gets sent as an event.

My app recently got rejected from the App Store because of the following reason: Require that users agree to terms (EULA) and these terms must make it clear that there is no tolerance for objectionable content or abusive users I am just wondering, If I choose to use my own custom EULA in App Store connect, will the standard EULA still apply or do I also have to include apple's standard EULA in my custom EULA?